Virtualities of quark and gluon in QCD vacuum

	Virtualities of quark and gluon in QCD vacuum
	Zhou, LJ; Qin, SM; Wu, Q; Ma, WX; Ma WX(马维兴)
刊名	SCIENCE IN CHINA SERIES G-PHYSICS MECHANICS & ASTRONOMY
	2008
卷号	51 期号:10 页码:1439-1447
关键词	quark gluon virtuality QCD vacuum condensate non-perturbative QCD
通讯作者	[Ma WeiXing] Guangxi Univ Technol, Collaborat Grp Hadron Phys & Non Perturbat QCD St, Liuzhou 545006, Peoples R China ; [Qin SongMei] Guangxi Univ, Dept Phys, Nanning 540003, Peoples R China ; [Wu Qing] Qingdao Univ, Dept Phys, Qingdao 266071, Peoples R China ; Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China
英文摘要	The non-local vacuum condensates of quantum chromodynamics (QCD) describe the distributions of quarks and gluons in the non-perturbative QCD vacuum state. Physically, this means that vacuum quarks and gluons have a nonzero mean-squared momentum in the vacuum, called virtuality. The quark virtuality is given by the ratio of the local quark-gluon mixed vacuum condensate to the quark local vacuum condensate. The gluon virtuality is expressed by gluon vacuum condensates and four-quark vacuum condensates. We study the two virtualities by solving Dyson-Schwinger Equations and calculating quark and gluon vacuum condensates. Our theoretical results for quark virtuality are in good agreement with many other theoretical model predictions such as QCD sum rules and lattice QCD calculations. Our calculation on gluon virtuality is initial and the results are quite interesting.
学科主题	Physics
类目[WOS]	Physics, Multidisciplinary
研究领域[WOS]	Physics
原文出处	SCI
语种	英语
WOS记录号	WOS:000259191400001
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/239353]
专题	高能物理研究所_理论物理室
作者单位	中国科学院高能物理研究所
推荐引用方式 GB/T 7714	Zhou, LJ,Qin, SM,Wu, Q,et al. Virtualities of quark and gluon in QCD vacuum[J]. SCIENCE IN CHINA SERIES G-PHYSICS MECHANICS & ASTRONOMY,2008,51(10):1439-1447.
APA	Zhou, LJ,Qin, SM,Wu, Q,Ma, WX,&马维兴.(2008).Virtualities of quark and gluon in QCD vacuum.SCIENCE IN CHINA SERIES G-PHYSICS MECHANICS & ASTRONOMY,51(10),1439-1447.
MLA	Zhou, LJ,et al."Virtualities of quark and gluon in QCD vacuum".SCIENCE IN CHINA SERIES G-PHYSICS MECHANICS & ASTRONOMY 51.10(2008):1439-1447.